1.Association of sexually transmitted infection with semen quality in men from couples with primary and secondary infertility.
Shun BAI ; Yuan LI ; Mei-Hong HU ; Li WU ; Li-Jun SHUI ; Xiao-Han WANG ; Yi-Xun LIU ; Qiu-Ling YUE ; Li-Na YU ; Kai-Qiang FU ; Xian-Hong TONG ; Xue-Chun HU ; Bo XU
Asian Journal of Andrology 2022;24(3):317-322
This study aims to compare the prevalence of sexually transmitted infections (STIs) with semen quality in men from couples with primary and secondary infertility. Semen samples were collected from 133 men who requested fertility evaluation. Seminal tract infection with Ureaplasma spp. (UU), Mycoplasma hominis (MH), Mycoplasma genitalium (MG), Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and herpes simplex virus-2 (HSV-2) was assessed by PCR-based diagnostic assays. Among all patients, the prevalence of STIs was higher in men from couples with primary infertility than that in men from couples with secondary infertility (39.7% vs 21.7%, P = 0.03). The prevalence of UU was 28.8% and 13.3% in men from couples with primary and secondary infertility, respectively. Men from couples with primary infertility were more likely to be positive for UU than men from couples with secondary infertility (P = 0.04). Regarding the UU subtype, the prevalence of Ureaplasma urealyticum (Uuu) and Ureaplasma parvum (Uup; including Uup1, Uup3, Uup6, and Uup14) did not differ between the two groups. No associations between the prevalence rates of MH, MG, and CT were found in men from either infertility group. A lower sperm concentration was associated with STI pathogen positivity in men with primary infertility according to the crude model (P = 0.04). The crude and adjusted models showed that semen volume (both P = 0.03) and semen leukocyte count (both P = 0.02) were independently associated with secondary infertility. These findings suggest the importance of classifying the type of infertility during routine diagnosis of seminal tract infections.
Female
;
Humans
;
Infertility, Male/epidemiology*
;
Male
;
Mycoplasma genitalium
;
Mycoplasma hominis
;
Prevalence
;
Semen
;
Semen Analysis
;
Sexually Transmitted Diseases/epidemiology*
;
Ureaplasma urealyticum
2.Anterior Cingulate Cortex Mediates Hyperalgesia and Anxiety Induced by Chronic Pancreatitis in Rats.
Dan REN ; Jia-Ni LI ; Xin-Tong QIU ; Fa-Ping WAN ; Zhen-Yu WU ; Bo-Yuan FAN ; Ming-Ming ZHANG ; Tao CHEN ; Hui LI ; Yang BAI ; Yun-Qing LI
Neuroscience Bulletin 2022;38(4):342-358
Central sensitization is essential in maintaining chronic pain induced by chronic pancreatitis (CP), but cortical modulation of painful CP remains elusive. Here, we examined the role of the anterior cingulate cortex (ACC) in the pathogenesis of abdominal hyperalgesia in a rat model of CP induced by intraductal administration of trinitrobenzene sulfonic acid (TNBS). TNBS treatment resulted in long-term abdominal hyperalgesia and anxiety in rats. Morphological data indicated that painful CP induced a significant increase in FOS-expressing neurons in the nucleus tractus solitarii (NTS) and ACC, and some FOS-expressing neurons in the NTS projected to the ACC. In addition, a larger portion of ascending fibers from the NTS innervated pyramidal neurons, the neural subpopulation primarily expressing FOS under the condition of painful CP, rather than GABAergic neurons within the ACC. CP rats showed increased expression of vesicular glutamate transporter 1, and increased membrane trafficking and phosphorylation of the N-methyl-D-aspartate receptor (NMDAR) subunit NR2B and the α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor (AMPAR) subunit GluR1 within the ACC. Microinjection of NMDAR and AMPAR antagonists into the ACC to block excitatory synaptic transmission significantly attenuated abdominal hyperalgesia in CP rats, which was similar to the analgesic effect of endomorphins injected into the ACC. Specifically inhibiting the excitability of ACC pyramidal cells via chemogenetics reduced both hyperalgesia and comorbid anxiety, whereas activating these neurons via optogenetics failed to aggravate hyperalgesia and anxiety in CP rats. Taken together, these findings provide neurocircuit, biochemical, and behavioral evidence for involvement of the ACC in hyperalgesia and anxiety in CP rats, as well as novel insights into the cortical modulation of painful CP, and highlights the ACC as a potential target for neuromodulatory interventions in the treatment of painful CP.
Animals
;
Anxiety/etiology*
;
Chronic Pain/etiology*
;
GABAergic Neurons
;
Gyrus Cinguli/metabolism*
;
Hyperalgesia/metabolism*
;
Pancreatitis, Chronic/pathology*
;
Rats
;
Rats, Sprague-Dawley
;
Receptors, N-Methyl-D-Aspartate/metabolism*
;
Trinitrobenzenesulfonic Acid/toxicity*
3.Impact of adjuvant chemotherapy on prognosis in intrahepatic cholangiocarcinoma patients underwent radical resection.
Jing Bo SU ; Jing Wei ZHANG ; Chen CHEN ; Ying He QIU ; Hong WU ; Tian Qiang SONG ; Yu HE ; Xian Hai MAO ; Wen Long ZHAI ; Zhang Jun CHENG ; Jing Dong LI ; Shu Bin SI ; Zhi Qiang CAI ; Zhi Min GENG ; Zhao Hui TANG
Chinese Journal of Surgery 2022;60(4):356-362
Objectives: To investigate the clinical value of adjuvant chemotherapy(ACT) in patients with intrahepatic cholangiocarcinoma(ICC) who underwent radical resection and to explore the optimal population that can benefit from ACT. Methods: A retrospective cohort study method was adopted. The clinical and pathological data of 685 patients with ICC who underwent curative intent resection in 10 Chinese hepatobiliary surgery centers from January 2010 to December 2018 were collected;There were 355 males and 330 females. The age(M(IQR)) was 58(14) years (range: 22 to 83 years). Propensity score matching(PSM) was applied to balance the differences between the adjuvant and non-adjuvant chemotherapy groups. Log-rank test was used to compare the prognosis of the two groups of patients. A Bayesian network recurrence-free survival(RFS) prediction model was constructed using the median RFS time (14 months) as the target variable, and the importance of the relevant prognostic factors was ranked according to the multistate Birnbaum importance calculation. A survival prognostic prediction table was established to analyze the population benefiting from adjuvant chemotherapy. Results: Among 685 patients,214 received ACT and 471 did not receive ACT. A total of 124 pairs of patients were included after PSM, and patients in the ACT group had better overall survival (OS) and RFS than those in the non-ACT group(OS: 32.2 months vs. 18.0 months,P=0.003;RFS:18.0 months vs. 10.0 months,P=0.001). The area under the curve of the Bayesian network RFS prediction model was 0.7124. The results of the prognostic factors in order of importance were microvascular invasion (0.158 2),perineural invasion (0.158 2),N stage (0.155 8),T stage (0.120 9), hepatic envelope invasion (0.090 3),adjuvant chemotherapy (0.072 1), tumor location (0.057 5), age (0.042 3), pathological differentiation (0.034 0), sex (0.029 3), alpha-fetoprotein (0.028 9) and preoperative jaundice (0.008 5). A survival prediction table based on the variables with importance greater than 0.1 (microvascular invasion,perineural invasion,N stage,T staging) and ACT showed that all patients benefited from ACT (increase in the probability of RFS≥14 months from 2.21% to 7.68%), with a more significant increase in the probability of RFS≥14 months after ACT in early-stage patients. Conclusion: ACT after radical resection in patients with ICC significantly prolongs the OS and RFS of patients, and the benefit of ACT is greater in early patients.
Bayes Theorem
;
Bile Duct Neoplasms/surgery*
;
Bile Ducts, Intrahepatic/pathology*
;
Chemotherapy, Adjuvant
;
Cholangiocarcinoma/surgery*
;
Female
;
Humans
;
Male
;
Prognosis
;
Retrospective Studies
4.Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China.
Yan MA ; Dong Shan ZHU ; Ren Bo CHEN ; Nan Nan SHI ; Si Hong LIU ; Yi Pin FAN ; Gui Hui WU ; Pu Ye YANG ; Jiang Feng BAI ; Hong CHEN ; Li Ying CHEN ; Qiao FENG ; Tuan Mao GUO ; Yong HOU ; Gui Fen HU ; Xiao Mei HU ; Yun Hong HU ; Jin HUANG ; Qiu Hua HUANG ; Shao Zhen HUANG ; Liang JI ; Hai Hao JIN ; Xiao LEI ; Chun Yan LI ; Min Qing LI ; Qun Tang LI ; Xian Yong LI ; Hong De LIU ; Jin Ping LIU ; Zhang LIU ; Yu Ting MA ; Ya MAO ; Liu Fen MO ; Hui NA ; Jing Wei WANG ; Fang Li SONG ; Sheng SUN ; Dong Ting WANG ; Ming Xuan WANG ; Xiao Yan WANG ; Yin Zhen WANG ; Yu Dong WANG ; Wei WU ; Lan Ping WU ; Yan Hua XIAO ; Hai Jun XIE ; Hong Ming XU ; Shou Fang XU ; Rui Xia XUE ; Chun YANG ; Kai Jun YANG ; Sheng Li YUAN ; Gong Qi ZHANG ; Jin Bo ZHANG ; Lin Song ZHANG ; Shu Sen ZHAO ; Wan Ying ZHAO ; Kai ZHENG ; Ying Chun ZHOU ; Jun Teng ZHU ; Tian Qing ZHU ; Hua Min ZHANG ; Yan Ping WANG ; Yong Yan WANG
Biomedical and Environmental Sciences 2020;33(12):893-905
Objective:
Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.
Methods:
A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients' medical records. Multivariable logistic regression models were used to estimate the odds ratio (
Results:
Overall, 158 (13.6%) patients were diagnosed with severe illness and 32 (2.7%) had unfavorable outcomes. Hypertension (2.87, 1.30-6.32), type 2 diabetes (T2DM) (3.57, 2.32-5.49), cardiovascular disease (CVD) (3.78, 1.81-7.89), fatty liver disease (7.53, 1.96-28.96), hyperlipidemia (2.15, 1.26-3.67), other lung diseases (6.00, 3.01-11.96), and electrolyte imbalance (10.40, 3.00-26.10) were independently linked to increased odds of being severely ill. T2DM (6.07, 2.89-12.75), CVD (8.47, 6.03-11.89), and electrolyte imbalance (19.44, 11.47-32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission (5.46, 3.25-9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes (6.58, 1.46-29.64) within two weeks.
Conclusion
Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.
Adult
;
Aged
;
COVID-19/virology*
;
China/epidemiology*
;
Comorbidity
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Female
;
Humans
;
Male
;
Middle Aged
;
Retrospective Studies
;
Severity of Illness Index
;
Treatment Outcome
5.Factors associated with a SARS-CoV-2 recurrence after hospital discharge among patients with COVID-19: systematic review and meta-analysis.
Meng-Qi YAO ; Qiu-Xian ZHENG ; Jia XU ; Jing-Wen DENG ; Tian-Tian GE ; Hai-Bo ZHOU ; Feng-Tian WU ; Xin-Yu GU ; Qin YANG ; Yan-Li REN ; Gang WANG ; Zhi CHEN
Journal of Zhejiang University. Science. B 2020;21(12):940-947
BACKGROUND:
The proportion of recurrences after discharge among patients with coronavirus disease 2019 (COVID-19) was reported to be between 9.1% and 31.0%. Little is known about this issue, however, so we performed a meta-analysis to summarize the demographical, clinical, and laboratorial characteristics of non-recurrence and recurrence groups.
METHODS:
Comprehensive searches were conducted using eight electronic databases. Data regarding the demographic, clinical, and laboratorial characteristics of both recurrence and non-recurrence groups were extracted, and quantitative and qualitative analyses were conducted.
RESULTS:
Ten studies involving 2071 COVID-19 cases were included in this analysis. The proportion of recurrence cases involving patients with COVID-19 was 17.65% (between 12.38% and 25.16%) while older patients were more likely to experience recurrence (weighted mean difference (WMD)=1.67, range between 0.08 and 3.26). The time from discharge to recurrence was 13.38 d (between 12.08 and 14.69 d). Patients were categorized as having moderate severity (odds ratio (OR)=2.69, range between 1.30 and 5.58), while those with clinical symptoms including cough (OR=5.52, range between 3.18 and 9.60), sputum production (OR=5.10, range between 2.60 and 9.97), headache (OR=3.57, range between 1.36 and 9.35), and dizziness (OR=3.17, range between 1.12 and 8.96) were more likely to be associated with recurrence. Patients presenting with bilateral pulmonary infiltration and decreased leucocyte, platelet, and CD4
CONCLUSIONS
The main factors associated with the recurrence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) after hospital discharge were older age, moderate severity, bilateral pulmonary infiltration, laboratory findings including decreased leucocytes, platelets, and CD4
Age Factors
;
Blood Cell Count
;
CD4 Lymphocyte Count
;
COVID-19/pathology*
;
Cough
;
Dizziness
;
Headache
;
Humans
;
Patient Discharge
;
Recurrence
;
Risk Factors
6.Clinical characteristics and outcomes of 112 cardiovascular disease patients infected by 2019-nCoV.
Yu Dong PENG ; Kai MENG ; Hong Quan GUAN ; Liang LENG ; Rui Rui ZHU ; Bo Yuan WANG ; Mei An HE ; Long Xian CHENG ; Kai HUANG ; Qiu Tang ZENG
Chinese Journal of Cardiology 2020;48(6):450-455
Objective: To explore the clinical characteristics and prognosis of the new coronavirus 2019-nCoV patients combined with cardiovascular disease (CVD). Methods: A retrospective analysis was performed on 112 COVID-19 patients with CVD admitted to the western district of Union Hospital in Wuhan, from January 20, 2020 to February 15, 2020. They were divided into critical group (ICU, n=16) and general group (n=96) according to the severity of the disease and patients were followed up to the clinical endpoint. The observation indicators included total blood count, C-reactive protein (CRP), arterial blood gas analysis, myocardial injury markers, coagulation function, liver and kidney function, electrolyte, procalcitonin (PCT), B-type natriuretic peptide (BNP), blood lipid, pulmonary CT and pathogen detection. Results: Compared with the general group, the lymphocyte count (0.74 (0.34, 0.94)×109/L vs. 0.99 (0.71, 1.29)×109/L, P=0.03) was extremely lower in the critical group, CRP (106.98 (81.57, 135.76) mg/L vs. 34.34 (9.55,76.54) mg/L, P<0.001) and PCT (0.20 (0.15,0.48) μg/L vs. 0.11 (0.06,0.20) μg/L, P<0.001) were significantly higher in the critical group. The BMI of the critical group was significantly higher than that of the general group (25.5 (23.0, 27.5) kg/m2 vs. 22.0 (20.0, 24.0) kg/m2,P=0.003). Patients were further divided into non-survivor group (17, 15.18%) group and survivor group (95, 84.82%). Among the non-survivors, there were 88.24% (15/17) patients with BMI> 25.0 kg/m2, which was significantly higher than that of survivors (18.95% (18/95), P<0.001). Compared with the survived patients, oxygenation index (130 (102, 415) vs. 434 (410, 444), P<0.001) was significantly lower and lactic acid (1.70 (1.30, 3.00) mmol/L vs. 1.20 (1.10, 1.60) mmol/L, P<0.001) was significantly higher in the non-survivors. There was no significant difference in the proportion of ACEI/ARB medication between the critical group and the general group or between non-survivors and survivors (all P>0.05). Conclusion: COVID-19 patients combined with CVD are associated with a higher risk of mortality. Critical patients are characterized with lower lymphocyte counts. Higher BMI are more often seen in critical patients and non-survivor. ACEI/ARB use does not affect the morbidity and mortality of COVID-19 combined with CVD. Aggravating causes of death include fulminant inflammation, lactic acid accumulation and thrombotic events.
Betacoronavirus
;
COVID-19
;
Cardiovascular Diseases/therapy*
;
Coronavirus Infections/complications*
;
Humans
;
Pandemics
;
Pneumonia, Viral/complications*
;
Prognosis
;
Retrospective Studies
;
SARS-CoV-2
;
Treatment Outcome
7.Research on influence of environment factors to yield and quality traits of Perilla frutescen.
Qi SHEN ; Ji-Xian ZHAO ; Xue-Bo QIU ; Zhi-Wei SHANG ; Xian-Ping WANG ; Sen YANG ; Jing XU ; Shi-Lin CHEN
China Journal of Chinese Materia Medica 2018;43(20):4033-4043
The research is aimed to study of the influence of environmental factors on the yield and quality traits, and find out the regularity of the growth and development of perilla. The main environmental factor data in six ecological area in Guizhou province were collected, and the correlation analysis with yield and quality traits of 15 perilla strains was conducted. The results showed that the cultivation environment has significant effects on the yield and quality traits of perilla. The effect of environment on main yield composed traits, contained grain number in top spike, effective panicle number per plant, plant height, top spike length, growth period, and thousand seed weight was degressive. In the different environmental factors, the latitude showed positive correlation with yield, growth period and effective panicle number per plant, and negative correlation with top spike length and grain number in top spike. Elevation showed negative correlation with the growth period of perilla. The perilla yield increased at first and then decreased with altitude rising, with the maximum in the 800 m altitude. The 600-900 m altitude is suitable area for perilla. Except for positive correlation with the plant height, and negative correlation with top spike length, the longitude showed in apparent impact on other traits. Sunshine duration, temperature and rainfall accumulation showed different effect on the different perilla strains. For yield composed traits, the sunshine duration was negatively correlation with the plant length. The accumulated temperature and mean temperature showed negative correlation with the main spike length, the rainfall showed negative correlation with the precipitation and growth period, plant height, ear number. The environmental impact on the oil compounds decreased with oleic acid, stearic acid, linoleic acid, -linolenic acid, palmitic acid and oil content. Correlation analysis showed that the significantly negative correlation between the oil content and palmitic acid and linoleic acid content, and the positive correlation between linolenic acid content, -linolenic acid content showed significant negative correlation with other fatty acids composition, and palmitic acid, stearic acid, oleic acid, linoleic acid showed significant positive correlation with each other. The influence of different environmental factors on the quality of perilla were as follows: the oil content was positively associated with elevation and sunshine duration. -Linolenic acid content showed negative correlation with longitude, latitude, accumulated temperature and mean temperature, but positive correlation with altitude, sunlight and rainfall capacity. The correlation between palmitic acid, stearic acid, oleic acid, linoleic acid and environmental factors showed contrast character of -linolenic acid. This study detailed discussed the influence of environmental factors on the quality of perilla, which provided the foundation of ecological planting technology and geoherbalism research of perilla.
Environment
;
Fatty Acids
;
analysis
;
Perilla frutescens
;
chemistry
;
growth & development
;
Phytochemicals
;
analysis
;
Plant Oils
;
analysis
8.Re-operation treatment in uremic patients complicated with persistent secondary hyperparathyroidism after parathyroidectomy with autotransplantation.
Shao Jun BO ; Xian Fa XU ; Chuan Ya QIU ; Tian Tian WANG ; Yu Dong NING ; Hong Yue LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2018;32(2):142-147
To analyze the clinical profile and therapeutic effect of re-operation treatment in uremic patients complicated with persistent secondary hyperparathyroidism(SHPT)after parathyroidectomy with autotransplantation.Twelve persistent SHPT patients who were treated with reoperation of paramyroidectomy(PTX)were enrolled in this study during the period from Jan 2014 to Jul 2017 in our hospital.We evaluated the location of the remaining parathyroid glands by ultrasonography,dual-phase 99 Tcm-sestamibi scintigraphy,CT and MR imaging of the neck before the operation.We resected the parathyroid gland tissue in situ,and the ectopic parathyroid glands hiding in thymus,mediastinal,tracheal esophageal groove,thyroid gland and other locations in the neck.During the surgery,nanocarbon imaging was used to help identify the parathyroid gland and parathyroid hormone assay(IOPTH)was measured at the end of the surgery.We observed the changes of clinical symptoms after the surgery and collected blood parameters including serum intact aramyroidhomone(i-PTH),calcium(Ca),phosphoms(P),calcium and phosphorus product before and after surgery.Complications and failure were also analyzed.All the 12 patients underwented successful operation.The postoperative pathological results were hyperplastic parathyroid glands tissue.22 parathyroid glands were resected,among which 14 were located at the neck in situ,8 were ectopic,i.e.,located at thymus in 4 cases,superior mediastinum in 2 cases and thyroid parenchyma in 2 cases.The clinical symptoms were significantly improved including osteoarthritis,skin itching and limb weakness.The levels of serum iPTH,calcium,phosphorus and calcium and phosphorus product were significantly lower than those before operation(<0.05).Ten patients presented hypocalcemia after surgery and the level of calcium returned to normal after supplement of calcium.Temporary injury of laryngeal nerve was found in4 cases,but there was no patient with transient bucking,dyspnea or death.No recurrence was found during 1 year follow-up.It was very important to locate the residual parathyroid gland accurately with a variety of imaging methods in uremic patients complicated with persistent or recurrent SHPT when they needed re-operation.Surgeons should explorate ectopic parathyroid gland according to the concept of the superior mediastinum dissection and the central compartment neck dissection.Meanwhile,the use of nanocarbon assisted parathyroid gland negative imaging and rapid IOPTH can significantly improve the success rate of surgery and reduce surgical complications.
Humans
;
Hyperparathyroidism, Secondary
;
complications
;
surgery
;
Parathyroid Glands
;
Parathyroid Hormone
;
Parathyroidectomy
;
Reoperation
;
Transplantation, Autologous
;
Uremia
;
complications
9.Analysis of spatial distribution of artemisinin in Artemisia annua in China.
Xiao-Bo ZHANG ; Lan-Ping GUO ; Zhi-Dong QIU ; Xiao-Bo QU ; Hui WANG ; Zhi-Xian JING ; Lu-Qi HUANG
China Journal of Chinese Materia Medica 2017;42(22):4277-4281
Geo-herbals are preferred by long-term clinical application of Chinese medicine, they are produced in a specific area and affected by the specific production and processing methods. Geo-herbals have a high reputation, compared with other regions produced by the same kind of herbs with good quality, efficacy and stable quality characteristics. Geo-herbal is a unique concept that has been formed by the history of Chinese civilization for thousands of years and the history of Chinese medicine. According to the definition of geo-herbal, it can be seen that there are some differences in the quality and efficacy of the same kind of medicinal herbs in different regions, and there is some similarity in the specific area. In this study, the spatial distribution characteristics of artemisinin in Artemisia annua were analyzed by spatial statistical analysis. ①The spatial autocorrelation of artemisinin content was analyzed by "I coefficient". The results showed that the content of artemisinin in each province was significant and positive spatial autocorrelation. The content of artemisinin in each province was not randomly distributed, but with a clear spatial aggregation characteristics. ②The spatial variability of artemisinin content was analyzed by "G statistic". The results showed that the area with high content of artemisinin was distributed in the southwest region, and the content of artemisinin was concentrated in the space, which tends to accumulate at high value. The content of artemisinin in Tianjin and Liaoning province is low, and it tends to accumulate at low value, while the content of artemisinin in other provinces is the transition zone of high and low value. ③Based on the index of artemisinin in each province, the spatial correlation of artemisinin content in each region was analyzed by "moran scatter plot". The results showed that the content of artemisinin in nine provinces such as Guangxi and Chongqing belonged to high value gathering area. ④Based on the artemisinin content and ecological environment factor of sampling point, the "geophysical detector" was used to analyze the continuous quantitative data and discontinuous qualitative data. The results showed that the sunshine, temperature and precipitation were the main factors affecting the content of artemisinin.
10.Spatial differences of Chinese material medicine resources species in Jilin province.
Xiao-Bo ZHANG ; Zhi-Dong QIU ; Hui WANG ; Zhi-Xian JING ; Lan-Ping GUO ; Xiao-Bo QU ; Lu-Qi HUANG
China Journal of Chinese Materia Medica 2017;42(22):4336-4340
The differences in the spatial distribution of regional Chinese material medicine resources between regions are determined by differences in natural conditions and social resources among different regions. Spatiotemporal evolution of the distribution of Chinese material medicine resources is a manifestation of the development process of Chinese medicine industry in time and space. The spatiotemporal evolution of the distribution of regional Chinese material medicine resources can reveal the regularity of spatial distribution of Chinese material medicine resources. County as the basic unit of the national material medicine resources census, the difference of resource endowment is of great significance to the rational development of Chinese material medicine resources policy and the coordinated development of regional resources and environment. Based on the results of the pilot project of Jilin province, this study selected 51 counties that had completed the census of Chinese material medicine resources. According to the species of Chinese material medicine resources, we explored the diversity of Chinese material medicine resources in Jilin province by using statistical data analysis (ESDA), trend surface analysis and spatial variability function to analyze the spatial differences of Chinese material medicine resources. Chinese material medicine resources are distributed in the eastern and southeastern part of Jilin province, mostly in the Changbai Mountains. The species of Chinese material medicine resources tend to be low-value spatial aggregation; the overall cold spots are located in Changchun and Jilin city, near the administrative center, mostly urban built-up area. The rich areas of Chinese material medicine resources are rich in hot spots, mainly in broad-leaved forest. The low-abundance of Chinese material medicine resources is dominated by cultivated vegetation.

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