1.Outcome after spleen-preserving distal pancreatectomy by Warshaw technique for pancreatic body cancer
Endi ZHOU ; Guodong SHI ; Hongyuan SHI ; Kai ZHANG ; Jishu WEI ; Min TU ; Zipeng LU ; Feng GUO ; Jianmin CHEN ; Kuirong JIANG ; Wentao GAO
Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(2):177-186
Background:
s/Aims: Distal pancreatectomy with splenectomy (DPS) is a common surgical procedure for pancreatic body cancer.However, spleen-preserving distal pancreatectomy (SPDP) utilizing the Warshaw technique (WT) in malignancies is generally not favored due to concerns about inadequate resection. This study aims to assess the feasibility and oncologic outcomes of employing SPDP with WT in pancreatic body cancer.
Methods:
We conducted a retrospective analysis comparing 21 SPDP patients with 63 DPS patients matched by propensity score from January 2018 to November 2022. Clinical outcomes and follow-up data were analyzed using R.
Results:
Both groups exhibited similar demographic, intraoperative, and pathological characteristics, with the exception of a reduced number of total lymph nodes (p = 0.006) in the SPDP group. There were no significant differences in the rates of postoperative complications, recurrence, or metastasis. Local recurrence predominantly occurred in the central region as opposed to the spleen region.There were no cases of isolated recurrences in the splenic region. Median overall survival and recurrence-free survival times were 51.5 months for SPDP vs 30.5 months for DPS and 18.7 months vs 16.8 months, respectively (p > 0.05). The incidence of partial splenic infarction and left-side portal hypertension in the SPDP group was 28.6% (6/21) and 9.5% (2/21), respectively, without necessitating splenic abscess puncture, splenectomy, or causing bleeding from perigastric varices.
Conclusions
SPDP did not negatively impact local recurrence or survival rates in selected pancreatic body cancer patients. Further studies are necessary for validation.
2.Outcome after spleen-preserving distal pancreatectomy by Warshaw technique for pancreatic body cancer
Endi ZHOU ; Guodong SHI ; Hongyuan SHI ; Kai ZHANG ; Jishu WEI ; Min TU ; Zipeng LU ; Feng GUO ; Jianmin CHEN ; Kuirong JIANG ; Wentao GAO
Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(2):177-186
Background:
s/Aims: Distal pancreatectomy with splenectomy (DPS) is a common surgical procedure for pancreatic body cancer.However, spleen-preserving distal pancreatectomy (SPDP) utilizing the Warshaw technique (WT) in malignancies is generally not favored due to concerns about inadequate resection. This study aims to assess the feasibility and oncologic outcomes of employing SPDP with WT in pancreatic body cancer.
Methods:
We conducted a retrospective analysis comparing 21 SPDP patients with 63 DPS patients matched by propensity score from January 2018 to November 2022. Clinical outcomes and follow-up data were analyzed using R.
Results:
Both groups exhibited similar demographic, intraoperative, and pathological characteristics, with the exception of a reduced number of total lymph nodes (p = 0.006) in the SPDP group. There were no significant differences in the rates of postoperative complications, recurrence, or metastasis. Local recurrence predominantly occurred in the central region as opposed to the spleen region.There were no cases of isolated recurrences in the splenic region. Median overall survival and recurrence-free survival times were 51.5 months for SPDP vs 30.5 months for DPS and 18.7 months vs 16.8 months, respectively (p > 0.05). The incidence of partial splenic infarction and left-side portal hypertension in the SPDP group was 28.6% (6/21) and 9.5% (2/21), respectively, without necessitating splenic abscess puncture, splenectomy, or causing bleeding from perigastric varices.
Conclusions
SPDP did not negatively impact local recurrence or survival rates in selected pancreatic body cancer patients. Further studies are necessary for validation.
3.Outcome after spleen-preserving distal pancreatectomy by Warshaw technique for pancreatic body cancer
Endi ZHOU ; Guodong SHI ; Hongyuan SHI ; Kai ZHANG ; Jishu WEI ; Min TU ; Zipeng LU ; Feng GUO ; Jianmin CHEN ; Kuirong JIANG ; Wentao GAO
Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(2):177-186
Background:
s/Aims: Distal pancreatectomy with splenectomy (DPS) is a common surgical procedure for pancreatic body cancer.However, spleen-preserving distal pancreatectomy (SPDP) utilizing the Warshaw technique (WT) in malignancies is generally not favored due to concerns about inadequate resection. This study aims to assess the feasibility and oncologic outcomes of employing SPDP with WT in pancreatic body cancer.
Methods:
We conducted a retrospective analysis comparing 21 SPDP patients with 63 DPS patients matched by propensity score from January 2018 to November 2022. Clinical outcomes and follow-up data were analyzed using R.
Results:
Both groups exhibited similar demographic, intraoperative, and pathological characteristics, with the exception of a reduced number of total lymph nodes (p = 0.006) in the SPDP group. There were no significant differences in the rates of postoperative complications, recurrence, or metastasis. Local recurrence predominantly occurred in the central region as opposed to the spleen region.There were no cases of isolated recurrences in the splenic region. Median overall survival and recurrence-free survival times were 51.5 months for SPDP vs 30.5 months for DPS and 18.7 months vs 16.8 months, respectively (p > 0.05). The incidence of partial splenic infarction and left-side portal hypertension in the SPDP group was 28.6% (6/21) and 9.5% (2/21), respectively, without necessitating splenic abscess puncture, splenectomy, or causing bleeding from perigastric varices.
Conclusions
SPDP did not negatively impact local recurrence or survival rates in selected pancreatic body cancer patients. Further studies are necessary for validation.
4.Effect of Intestinal Microecology on Diabetic Kidney Disease Based on Yin-Yang Theory
Chao MO ; Guodong HUANG ; Wei SHI ; Jie ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(3):178-186
Diabetic kidney disease (DKD) is the main cause of end-stage renal disease. Its high prevalence, mortality rate, and medical cost bring a heavy economic burden to society and families, and DKD has become one of the most important public health problems. Intestinal microecology is the most important and complex micro-ecosystem in the human body, which is involved in important life activities such as material and energy metabolism, immune system regulation, and signal transduction, thereby maintaining the dynamic balance of the human internal environment. The dynamic balance between the intestinal microecology and the body is essentially a Yin-Yang balance. Once this balance is broken, intestinal microbiota imbalance, intestinal mucosal barrier damage, immune dysfunction, and reduction of metabolite short-chain fatty acids (SCFAs) will occur, which play an important role in the progression of DKD. From the perspective of the Yin-Yang theory of traditional Chinese medicine (TCM), the imbalance of intestinal microecology in DKD is equivalent to the excessive or insufficient constraint of Yin and Yang, or Yin deficiency affecting Yang, or Yang deficiency affecting Yin, or waning and waxing of Yin and Yang. For different pathogenesis changes, "Yin disease treated through Yang", "treating Yin for Yang", or "treating Yang for Yin" methods are adopted to regulate intestinal microbiota, inhibit immune inflammation, protect intestinal mucosal barrier, and increase SCFAs through TCM, thereby reconciling Yin and Yang to achieve the condition where "Yin is at peace and Yang is compact". Based on the Yin-Yang theory, this paper intended to interpret the scientific connotation of TCM in the treatment of DKD with intestinal microecology as the target and TCM in the treatment of DKD by regulating intestinal microecology as the breakthrough point to provide a novel insight for the occurrence and development of DKD and the mechanism of TCM.
5.Diagnosis,treatment and early outcome evaluation of radicular lumbar disease
Xiaowen LIU ; Tianyi ZHAO ; Lei LIU ; Haoyang SHI ; Yang HOU ; Guodong SHI
Academic Journal of Naval Medical University 2024;45(11):1439-1443
Objective To propose diagnostic criteria for radicular lumbar disease(RLD)and evaluate its surgical outcomes.Methods A retrospective study was conducted on 31 patients with RLD who were admitted to Department of Spinal Surgery of our hospital from Mar.2020 to Oct.2023.The nerve root tension during the operation was recorded,and the surgical complications,visual analog scale(VAS)score,Oswestry disability index(ODI),Japanese Orthopaedic Association(JOA)score,and modified MacNab score were statistically analyzed.Results There were 13 males and 18 females,with an average age of(56.39±9.96)years.All the patients underwent modified transforaminal lumbar interbody fusion(TLIF),including 2 cases of single-level operation,22 cases of two-level operation,4 cases of three-level operation,2 cases of four-level operation,and 1 case of six-level operation.The follow-up duration was(15.29±4.34)months.The nerve root tension during the operation was higher(25.00[22.00,28.25]g),while it decreased immediately after the operation(2.00[0.00,3.00]g),with significant differences(P<0.01).The VAS score,ODI and JOA score after operation were improved compared with those before operation(all P<0.01).At the last follow-up,there were 24 cases of"excellent",5 cases of"good",2 cases of"fair",and no"poor"in the modified MacNab score,and the excellent and good rate was 93.55%(29/31).Surgical complications(including cerebrospinal fluid leakage and incision infection)were occurred in 1 case each.Conclusion The remarkable clinical feature of patients with RLD is high tension of nerve.These patients can be treated by modified TLIF to improve the nerve hypertonia;early and accurate diagnosis and timely intervention are the keys to a good prognosis.
6.Effects of early debridement and conservative eschar removal followed by wound coverage with acellular dermal matrix in the treatment of children with deep burns
Yan LIANG ; Wen SHI ; Yang SHAO ; Xinzhuang LIU ; Hongmin GONG ; Guohui CAO ; Cong GAO ; Naijun XIN ; Guodong SONG
Chinese Journal of Burns 2024;40(4):348-357
Objective:To explore the effects of early debridement and conservative eschar removal followed by wound coverage with acellular dermal matrix (ADM), i.e., early surgery, in the treatment of children with deep burns.Methods:This study was a retrospective cohort study. From January 2017 to December 2022, 278 deep burned hospitalized children aged 1-7 years who met the inclusion criteria were admitted to Central Hospital Affiliated to Shandong First Medical University. According to the differences in treatment processes, 134 children who underwent early surgery+routine dressing change were enrolled in eschar removal+dressing change group (77 males and 57 females, aged 1 (1, 2) years), and 144 children who underwent only routine dressing change were enrolled in dressing change alone group (90 males and 54 females, aged 1 (1, 2) years). Fifty-one children without full-thickness burns in eschar removal+dressing change group were enrolled in eschar removal+dressing change group 1 (26 males and 25 females, aged 1 (1, 2) years), and 57 cases of the 83 children with full-thickness burns who did not undergo autologous skin grafting at the same time of early surgery (namely early skin grafting) in eschar removal+dressing change group were included in eschar removal+dressing change group 2 (37 males and 20 females, aged 1 (1, 2) years). Seventy-six children without full-thickness burns in dressing change alone group were included in dressing change alone group 1 (51 males and 25 females, aged 1 (1, 3) years), and 68 children with full-thickness burns in dressing change alone group were included in dressing change alone group 2 (39 males and 29 females, aged 1 (1, 2) years). For deep partial-thickness burn wounds and small full-thickness burn wounds in eschar removal+dressing change group, the eschar removal was performed on the basis of retaining a thin layer of denatured dermis so as to preserve the healthy tissue of the wound base, and ADM was applied to all wounds externally after eschar removal. For larger full-thickness burn wounds in this group, especially those located in the functional part of joints, eschar removal to the plane layer of viable tissue and early autologous skin grafting was needed. When the superficial wounds of children healed or tended to heal, the residual wounds were evaluated, and elective autologous skin grafting was performed if it was difficult to heal within 14 days. The healing time, intervention healing time, times of operation/dressing change, and times of intervention operation/dressing change in children with deep partial-thickness burn wounds of children in eschar removal+dressing change group, dressing change alone group, eschar removal+dressing change group 1, and dressing change alone group 1 were recorded. At the last follow-up (follow-up period was set to 7-12 months), the modified Vancouver scar scale (mVSS) scores of the most severe area of scar hyperplasia of healed deep partial-thickness burn wounds of 54 children in eschar removal+dressing change group and 48 children in dressing change alone group were recorded. The healing time and times of operation/dressing change of all burn wounds of children in eschar removal+dressing change group and dressing change alone group, and the healing time and times of operation/dressing change of full-thickness burn wounds of children in eschar removal+dressing change group 2 and dressing change alone group 2 were recorded. The incidences of wound infection, sepsis, fever, and fever after 5 days of burns in children of eschar removal+dressing change group and dressing change alone group during wound healing.Results:Compared with those in dressing change alone group, the healing time and intervention healing time were significantly shortened, and the times of operation/dressing change and times of intervention operation/dressing change were significantly reduced in children with deep partial-thickness burn wounds in eschar removal+dressing change group (with Z values of -11.00, -11.33, -12.64, and -11.65, respectively, P<0.05). Compared with those in dressing change alone group 1, the healing time and intervention healing time were significantly shortened, and the times of operation/dressing change and times of intervention operation/dressing change were significantly reduced in children with deep partial-thickness burn wounds in eschar removal+dressing change group 1 (with Z values of 6.57, 6.46, 8.04, and 6.57, respectively, P<0.05). At the last follow-up, the mVSS score of the most severe scar hyperplasia area of healed deep partial-thickness burn wounds of 54 children in eschar removal+dressing change group was 4.00 (3.00,5.00), which was significantly lower than 6.50 (5.00,7.00) of 48 children in dressing change alone group ( Z =-4.67, P<0.05).Compared with those in dressing change alone group, the healing time was significantly shortened, and times of operation/dressing change was significantly reduced in all burn wounds in eschar removal+dressing change group (with Z values of -5.20 and -6.34, respectively, P<0.05). Compared with those in dressing change alone group 2, the healing time was significantly shortened, and times of operation/dressing change was significantly reduced in full-thickness burn wounds in eschar removal+dressing change group 2 (with Z values of -5.22 and -5.73, respectively, P<0.05). During wound healing, the probabilities of fever and fever after 5 days of burns in children of eschar removal+dressing change group were significantly lower than those in dressing change alone group (with χ2 values of 4.13 and 3.91, respectively, P<0.05); only 1 child in dressing change alone group developed sepsis, and there was no statistically significant difference in the wound infection rate of children in the two groups ( P>0.05). Conclusions:For children with deep burns, early surgery, and early skin grafting or elective autologous skin grafting as needed, have better short-term and long-term effects than those without early surgery.
7.A decision tree model to predict successful endovascular recanalization of non-acute internal carotid artery occlusion
Shuxian HUO ; Chao HOU ; Xuan SHI ; Qin YIN ; Xianjun HUANG ; Wen SUN ; Guodong XIAO ; Yong YANG ; Hongbing CHEN ; Min LI ; Mingyang DU ; Yunfei HAN ; Xiaobing FAN ; Xinfeng LIU ; Ruidong YE
International Journal of Cerebrovascular Diseases 2023;31(7):481-489
Objective:To investigate predictive factors for successful endovascular recanalization in patients with non-acute symptomatic internal carotid artery occlusion (SICAO), to develop a decision tree model using the Classification and Regression Tree (CART) algorithm, and to evaluate the predictive performance of the model.Methods:Patients with non-acute SICAO received endovascular therapy at 8 comprehensive stroke centers in China were included retrospectively. They were randomly assigned to a training set and a validation set. In the training set, the least absolute shrinkage and selection operator (LASSO) algorithm was used to screen important variables, and a decision tree prediction model was constructed based on CART algorithm. The model was evaluated using the receiver operating characteristic (ROC) curve, Hosmer-Lemeshow goodness-of-fit test and confusion matrix in the validation set.Results:A total of 511 patients with non-acute SICAO were included. They were randomly divided into a training set ( n=357) and a validation set ( n=154) in a 7:3 ratio. The successful recanalization rates after endovascular therapy were 58.8% and 58.4%, respectively. There was no statistically significant difference ( χ2=0.007, P=0.936). A CART decision tree model consisting of 5 variables, 5 layers and 9 classification rules was constructed using the six non-zero-coefficient variables selected by LASSO regression. The predictive factors for successful recanalization included fewer occluded segments, proximal tapered stump, ASITN/SIR collateral grading of 1-2, ischemic stroke, and a recent event to endovascular therapy time of 1-30 d. ROC analysis showed that the area under curve of the decision tree model in the training set was 0.810 (95% confidence interval 0.764-0.857), and the optimal cut-off value for predicting successful recanalization was 0.71. The area under curve in the validation set was 0.763 (95% confidence interval 0.687-0.839). The accuracy was 70.1%, precision was 81.4%, sensitivity was 63.3%, and specificity was 79.7%. The Hosmer-Lemeshow test in both groups showed P>0.05. Conclusion:Based on the type of ischemic event, the time from the latest event to endovascular therapy, proximal stump morphology, the number of occluded segments, and the ASITN/SIR collateral grading constructed the decision tree model can effectively predict successful recanalization after non-acute SICAO endovascular therapy.
8.Incidence and treatment analysis of gastric cancer in Tianjin: a report of 3 122 cases
Xiaona WANG ; Weihua FU ; Yongjie ZHAO ; Tao YANG ; Xiangyang YU ; Junzhong SHI ; Guodong SONG ; Haotian LI ; Shupeng ZHANG ; Hai HUANG ; Jinfang ZHANG ; Jianping BAI ; Jinlin WANG ; Shucheng WANG ; Zhaokui DUAN ; Naihui SUN ; Tong LIU ; Han LIANG
Chinese Journal of Digestive Surgery 2023;22(10):1205-1211
Objective:To investigate the incidence and treatment of gastric cancer in 16 medical centers in Tianjin from 2020 to 2021.Methods:The retrospective and descriptive study was conducted. The clinical data of 3 122 gastric cancer patients who underwent surgery in 16 medical centers, including Tianjin Medical University Cancer Institute & Hospital, et al, in Tianjin from 2020 to 2021 were collected. There were 2 112 males and 1 010 females, aged (64±11)years. Observation indicators: (1) general data of patients; (2) treatment situations; (3) postoperative complications. Measurement data with normal distribution were represented as Mean± SD, and measurement data with skewed distribution were represented as M(range). Count data were descri-bed as absolute numbers or percentages, and comparison between groups was conducted by the chi-square test. Results:(1) General data of patients. From 2020 to 2021, a total of 3 122 gastric cancer patients received surgeries in 16 medical centers in Tianjin, including 2 112 males and 1 010 females. There were 1 443 cases in 2020, including 976 males and 467 females, aged (63±11) years. There were 1 679 cases in 2021, including 1 136 males and 543 females, aged (65±11) years. Of the 3 122 pati-ents, cases in stage Ⅰ, Ⅱ, Ⅲ, Ⅳ were 696, 667, 1 466, 293, accounting for 22.293%(696/3 122), 21.365%(667/3 122), 46.957%(1 466/3 122), 9.385%(293/3 122), respectively. Cases with early gastric cancer, locally advanced gastric cancer, advanced gastric cancer account for 17.265%(539/3 122), 73.350%(2 290/3 122), 9.385%(293/3 122). There were 2 829 patients without distant metastasis and 293 patients with distant metastasis. For the 2 829 patients without distant metas-tasis, cases in stage T1, T2, T3, T4a, T4b accounted for 19.053%(539/2 829), 12.089%(342/2 829), 20.148%(570/2 829), 41.499%(1 174/2 829), 7.211%(204/2 829)respectively, cases in stage N0, N1, N2, N3 account for 37.328%(1 056/2 829), 16.331%(462/2 829), 15.836%(448/2 829), 30.505%(863/2 829). For the 293 advanced gastric cancer patients with distant metastasis, 190 cases had peri-toneal metastasis, 47 cases had lymph node metastasis, 27 cases had ovarian metastasis, 37 cases had liver metastasis, 14 cases had other metastasis (some patients had ≥2 distant metastases). (2) Treatment situations. ① For the 539 with early gastric cancer, cases undergoing endoscopic submu-cosal dissection, laparoscopic surgery, open surgery were 22, 150, 86 in 2020, versus 19, 212, 50 in 2021, showing a significant difference between them ( χ2=19.42, P<0.05). For the 498 patients with early gastric cancer who underwent laparoscopic or open surgery, cases undergoing open surgery including total gastrectomy, distal gastrectomy, proximal gastrectomy were 25, 81, 30, and cases undergoing laparoscopic surgery including total gastrectomy, distal gastrectomy, proximal gastrec-tomy were 18, 309, 35, respectively, showing a significant difference between them ( χ2=40.62, P<0.05). For the 2 290 patients with locally advanced gastric cancer, cases undergoing open surgery and laparoscopic surgery were 446 and 617 in 2020, versus 410 and 817 in 2021, showing a significant difference between them ( χ2=17.75, P<0.05). For the 2 290 patients with locally advanced gastric cancer, cases undergoing open surgery including total gastrectomy, distal gastrectomy, proxi-mal gastrectomy were 336, 377, 143, and cases undergoing laparoscopic surgery including total gastrectomy, distal gastrectomy, proximal gastrectomy were 377, 920, 137, respectively, showing a significant difference between them ( χ2=89.64, P<0.05). Of the 293 patients with advanced gastric cancer, 175 cases underwent surgeries due to hemorrhage, stenosis, perforation, 76 cases under-went surgery after chemotherapy, 42 cases underwent surgery directly. ② For 756 cases of 3 122 pati-ents undergoing total gastrectomy, 357 and 4 cases received open digestive tract reconstruction including Roux-en-Y and other anastomosis, versus 380 and 15 cases with laparoscopic digestive tract reconstruction including Roux-en-Y and other anastomosis, showing a significant difference between them ( χ2=5.57, P<0.05). For 1 687 cases undergoing distal gastrectomy, 84, 160, 158, 55 cases received open digestive tract reconstruction including Billroth Ⅰ anastomosis, Billroth Ⅱ + Braun anastomosis, Roux-en-Y anastomosis, uncut Roux-en-Y anastomosis, versus 154, 489, 417, 170 cases with laparoscopic digestive tract reconstruction including Billroth Ⅰ anastomosis, Billroth Ⅱ + Braun anastomosis, Roux-en-Y anastomosis, uncut Roux-en-Y anastomosis, showing a significant difference between them ( χ2=10.90, P<0.05) . Of the 539 patients with early gastric cancer, 65 cases had lymph node metastasis, in which 18 of 306 stage T1a cases had lymph node metastasis and 47 of 233 stage T1b cases had lymph node metastasis. The number of detected lymph nodes for the 2 290 patients with advanced gastric cancer was 31±15, including ≥16 for 2 059 cases and ≥30 for 1 276 cases. Of the 3 122 patients, cases with neoadjuvant therapy, complete response and incomplete response was 128, 13 and 115 in 2020, versus 250, 49 and 201 in 2021, showing a significant difference between them ( χ2=5.51, P<0.05). (3) Postoperative complications. Of the 3 122 patients, 746 cases had postoperative complications, with an incidence of 23.895%(746/3 122). There were 62 patients with grade 3 or more complications. Reoperation was conducted in 34 patients. There were 14 cases of postoperative death. The duration of postoperative hospital stay and hospital expense were (11±5)days and (98 114±46 598)yuan for the 3 122 patients, (26±14)days and (122 066±68 317)yuan for cases with complications, (40±21)days and (196 926±12 747)yuan for cases with grade 3 or more complications. Conclusion:Compared with 2020, cases undergoing laparoscopic surgery and distal gastrectomy for gastric cancer in Tianjin increases in 2021, and the digestive tract reconstruction also differs. The number of patients with neoadjuvant chemotherapy and complete response rate for advanced gastric cancer increases.
9.Diagnosis and treatment of dyspepsia associated with pancreatic tumors
Guodong SHI ; Zipeng LU ; Kuirong JIANG
Journal of Clinical Hepatology 2023;39(12):2770-2774
Dyspepsia is the one of the most common clinical manifestations of digestive system diseases and has various and complex causes, among which pancreatic tumor is a relatively uncommon cause and is easily neglected in clinical practice. The dual factors of tumor and dyspepsia may cause a significant reduction in the quality of life of patients. At present, there is still a lack of standardized diagnosis and treatment strategies for dyspepsia associated with pancreatic tumors, and this article reviews the diagnosis and treatment of this disease.
10.Attenuation Effect of Recovery Sleep for Impaired Reproductive Function in Male Rats by Sleep Deprivation
Wei ZHANG ; Xiao SHI ; Yuyang ZHANG ; Guodong LIU ; Xu WU ; Houbao HUANG ; Hui JIANG ; Xiansheng ZHANG
The World Journal of Men's Health 2023;41(3):671-679
Purpose:
The aim of the present study was to test the hypothesis that recovery sleep could counteract the detrimental effects of sleep deprivation (SD) on male rats’ fertility.
Materials and Methods:
Twenty-two rats were housed in groups of six per cage with unrestricted access to food and water in a room. The modified multiple platform method was used to induce SD in rats over a 96-hour period. We examined the effect of SD on semen quality, reproductive hormones, and testicular histology in adult male rats. Then, we investigated the effect of 7 days recovery sleep on impaired reproductive function induced by SD.
Results:
After the acclimation period, 22 rats were randomly separated into three experimental groups (SD, recovery sleep, and the control groups). Ninety-six hours of SD resulted in a significant decrease in sperm motility (24.33±10.93 vs. 48.20±8.55, p<0.001) and the number of morphologically normal sperm (9.68±2.77 vs. 26.21±14.60, p<0.01) in rats, accompanied by a decrease in testosterone levels (1.53±0.55 vs. 4.44±0.56, p<0.001) and destruction of testicular tissue structure compared with control group. After 7 days of recovery sleep, semen quality, especially sperm motility, was improved and testosterone levels were significantly higher compared to post-SD (3.70±0.53 vs. 1.53±0.55, p<0.05), but remained low compared to the control group.
Conclusions
In conclusion, 96 hours of SD deteriorated the parameters of sperm motility and the number of morphologically normal sperm in rats, probably due to the decrease in serum testosterone levels and the disruption of testicular tissue structure when compared to the control group. After 7 days of recovery sleep, semen parameter, especially sperm motility and testosterone levels did not return to baseline levels compared to the control group.

Result Analysis
Print
Save
E-mail