Objective To identify the characteristics of hippocampal 3-dimensional MRI in patients diagnosed as having subtypes of amnestic mild cognitive impairment(aMCI)using hippocampal surfacebased analytic technique.Methods Fifry aMCI patients and 16 healthy controls who were equivalent in age and education(NC)were recruited.Every subiect carried out a 3-dimensional MRI scan.After the imaging data were acquired.the borders of the hippocampus were manually traced in coronal vlew using the software of InsightSNAP1.4.1. Hippocampal volume was computed automatically and statistically analysed.Hippocampal 3-dimension MRI were transformed into 3-dimension parametric surface mesh models of 400×200 prids.Hippocampal radial distance measures which was the distance from the surface point to the central axis were statistically compared between two groups.The radial atrophy significance maps were acquired and adjusted for multiple comparisons.Hippocampal morphological difference maps of aMCI in contrast with NC were acquired.Results The average normalized volume of left hippocampus were(3247.5±600.2)mm3 in aMCI patients and(3467.9±451.3)mm3 in NC subjects.The average normalized volume of right hippocampus were(3416.8±699.1)mm3 in aMCI patients and(3469.1±358.9)mm3 in NC subjects.Comparison of hippocampal volume did not differ significantly between aMCI patients and NC subjects(t=1.161,P=0.255;U=0.178,P=0.859).By using hippocampal surface-based morphologic analytic technique,3-dimension hippocampal morphological difference maps between two groups were acquired,showing significant atrophy on the lateral and inferior hippocampal surface which corresponded to CA1 and subiculum hippocampal subfields bilaterally in aMCI patients compared with NC subjects. Conclusions aMCI patients do not have significant volume loss in the hippocampus. Through hippocampal surface-based morphologic analyses, partial regional atrophy of hippocampus at some degree is found, mainly localizing in the lateral and inferior hippocampal regions which correspond to CA1 and subiculum hippocampal subfields bilaterally in aMCI compared with NC. These results may reflect the early image marker in aMCI.

AIM: To investigate the effects of internal change of serum insulin and plasma glucose levels on serum free fatty acid (FFA) concentrations after glucose loading. METHODS: Serum insulin, plasma glucose and FFA concentrations were measured simultaneously in 234 essential hypertension patients who were undergoing oral glucose tolerance test (OGTT) [ including 20 cases with 2 type diabetes mellitus (DM), 74 impaired glucose tolerance (IGT), 140 normal glucose tolerance (NGT); 98 males, 136 females]. RESULTS: Fasting serum FFA concentration (?mol/L) in DM ((1 048.47)?481.6) was higher than that in IGT (760.1?332.1) (P

AIM: To investigate the relationship between serum soluble E-selectin (sE-selectin) and insulin resistance, serum uric acid, serum lipid in essential hypertension patients. METHODS: Fasting serum sE-selectin concentration, plasma glucose, serum insulin, serum uric acid, total cholesterol, triglycerides, high density lipoprotein-cholesterol, low density lipoprotein-cholesterol were determined in 186 patients with essential hypertension (75 males, 111 females). Homeostasis model assessment was applied to assess the status of insulin resistance (HOMA-IR). RESULTS: Based on the HOMA-IR, the essential hypertension patients were divided into insulin-sensitive individuals (IS) and insulin resistant subjects (IR). The serum sE-selectin concentration was significantly higher in male group [(50.1?17.8)?g/L] than in female group [(40.6?16.6)?g/L] (P

The distal radius and the proximal row of carpal joints are important components of the carpal joint. Injury to the distal radius may result in decreased range of motion and strength of the wrist, and changes in the wrist appearance can hurt the patients. Developing microsurgical techniques, and updating orthopedic metal instruments and bone biological products provide more possible means for surgical reconstruction. Currently, reconstruction of the distal radius with autologous bone grafting is the mainstream surgical method, and the fibula and ilium are the main options for grafting. Moreover, other repair methods have also been reported, such as prosthetic repair and repair using the ulna to replace the radial function. This article reviews the main forms of surgical repair and reconstruction after distal radius injury reported in recent years, compares the clinical effects of different surgical methods, and summarizes the advantages and disadvantages of each surgical method, hoping to provide useful information for the treatment of distal radius injury.

ObjectiveTo establish a novel assay for HIV-1 p24 ultrasensitive detection based on Gold Nanoparticle Probe (GNP) and PCR.MethodsSandwich ELISA method was established by a pair of anti-p24 monoclonal antibodies (mAbs),1G12 and 1D4,and was used to detect recombinant HIV-1 p24 antigen.The bio-barcode DNA was 47 bp,selected from genome of Arabidopsis,and formed double-stranded DNA by hybridization with the capture DNA (complementary with bio-barcode DNA) modified with sulfhydryl.Then double-stranded DNA were conjugated on the surface of 1D4-modified gold nanoparticles by sulfhydryl,and the Gold Nanoparticle Probe was produced.1G12 was precoated in the micropaltes,and in the presence of target recombinant HIV-1 p24 protein,a sandwich immuno-complex would form by adding GNP.Then the bio-barcode DNA in the immuno-complex were released by heating as detection signal,and consequently characterized by the polymerase chain reaction (PCR) with synthesized special primers and analyzed by 4％ agar gel electrophoresis,so HIV-1 p24 antigen could be evaluated.The sensitivity comparison between the new assay and ELISA can be done.ResultsSandwich ELISA was used to quantify HIV-1 p24 antigen by monoclonal antibodies 1G12 and 1D4,and the limit of detection (LOD) was 1000 pg/ml.The new GNP assay was established by the same pair of antibodies,combined with PCR and agar gel electrophoresis,and was used to indirectly detect HIV-1 p24 antigen.The band intensity of PCR products paralleled with the quantity of HIV-1 p24 antigen,and the limit of detection (LOD) could reach down to 1 pg/ml.ConclusionThe new assay based on GNP and PCR was efficient in the detection of HIV-1 p24,which is at least 3 orders of magnitude more sensitive than traditional ELISA.

BACKGROUNDTo investigate the effect and complication of three-dimensional conformal radiotherapy (3D-CRT) for elderly patients with stage I-III non-small cell lung cancer.

METHODSThirty elderly patients with stage I-III NSCLC who were treated with 3D-CRT from January, 1998 to January, 2002 were retrospectively analyzed. In the 30 patients, 46 targets were treated with 3-5 Gy per fraction to a total dose of 42-66 Gy. The effect and complication were analysed.

RESULTSThe overall 1-, 2-, 3-year survival rates and the median survival time were 65.8%, 41.2%, 20.6%, and 23 months respectively. The overall 1-, 2-, 3-year local control rates were 59.8%, 31.1%, and 28.3%. The overall incidence of radiation pneumonitis was 16.7% (15/30) with grade≥3 of 6.7%, and one case was died from rediation pneumonitis. The incidence of radiation pulmonary fibrosis was 10.0% (3/30), and the incidence of radiation esophagistis was 43.3% (13/30), but both two side effects were slight.

CONCLUSIONS3D-CRT can improved the survival in elderly patients with stage I-III non-small cell lung cancer by escalating radiotherapy doses.

OBJECTIVETo investigate the effects of two different dosages of conjugated equine estrogen (CEE) on preventing bone loss and relieving the symptoms of menopausal syndrome in women at an early stage of menopause.

METHODSA total of 236 postmenopausal women were randomly allocated to one of the following groups: Group A: 0.625 mg CEE + 2 mg medroxyprogesterone acetate (MPA) + 1 tab Caltrate-D per day; Group B: 0.3 mg CEE + 2 mg MPA + 1 tab Caltrate-D per day; Group C: 1 tab Caltrate-D per day as the control group. The study was continued for 2 years.The following parameters were monitored: (1) L2-4 bone mineral density (BMD) (measured with dual energy X-ray absorptiometry (DEX)), (2) menopausal syndrome improvement (assessed by comparing Kupperman scores), (3) vaginal bleeding rate, and the thickness of the endometrium and breast in each group.

RESULTSOverall, 213 cases (90%) completed the 1-year study and 176 cases (75%) completed the 2-year study. The percentage changes in L2-4 BMD at the 12th and 24th month in Group A were +2.3% and +3.7%, respectively, with the posttreatment values being significantly higher than pretreatment values (P < 0.001). The percentage changes were +2.7% at 12th month (P < 0.05) and +0.7% at 24th month (P > 0.05) in Group B. And that of Group C were -0.4% at 12th month and -1.6% at 24th month (P > 0.05). L2-4 BMD in both Group A and B was significantly higher than that in Group C at 12th and 24th month (A vs C, P < 0.001; B vs C, P < 0.05). Kupperman Scores were significantly reduced after 1, 3, 6, 12 and 24 months in all 3 groups when compared with baseline (P < 0.001). Scores in Group A and Group B were significantly lower than that in Group C (P < 0.001). However, the vaginal bleeding rates in Group A were significantly higher than that in Group B or in Group C. There was no atypical hyperplasia of endometrium in the 3 groups by the end of the study. One patient in Group A developed superficial thrombophlebitis by the end of 12th month.

CONCLUSIONContinuous combination of CEE and MPA is effective in preventing bone loss and relieving the symptoms of menopausal syndrome in women at an early stage of menopause. The vaginal bleeding rates in the Group treated with 0.625 mg/d CEE were significantly higher than those treated with 0.3 mg/d CEE.

Alkaline Phosphatase ; blood ; Bone Density ; drug effects ; Endometrium ; pathology ; Estrogens, Conjugated (USP) ; administration & dosage ; Female ; Hormone Replacement Therapy ; adverse effects ; methods ; Humans ; Menopause ; Middle Aged ; Progestins ; administration & dosage ; Uterine Hemorrhage ; epidemiology

Objective:To describe the status and influencing factors of the empowerment of caregivers after gastrointestinal tumor.Methods:From March 2019 to October 2019, using convenience sampling method, 124 pairs of gastrointestinal tumor patients and caregivers who were hospitalized in the general surgery and anorectal surgery of the department of Shandong Tai′an City Central Hospital and the Second Affiliated Hospital of Shandong First Medical University were selected as the subjects. A general information questionnaire, Main Caregivers′Empowerment Measurement were used as research tools. To investigate the empowerment ability of caregivers of patients with gastrointestinal tumors after operation.Results:The total caregiver′s empowerment score was 168.81 ± 19.49. The scores of each dimension ranged from high to low: relationship with caregivers (3.83 ± 0.43), expectation of care outcomes (3.80 ± 0.43), awareness of caregiving roles (3.70 ± 0.51), caregivers′ subjectivity (3.37 ± 0.60), caregiving beliefs (3.34 ± 0.67), caregiving knowledge and skills (3.27 ± 0.73), personal resources (2.94 ± 0.65), goodwill caregiving (2.85 ± 0.65) , the scruples around (2.75 ± 0.88). Multiple linear regression results showed that, patient gender, whether the disease is first attack, whether the patient is aware of the disease, the caregiver marriage, and the caregiver working status were the influencing factors of the caregiver′s empowerment ability after gastrointestinal tumor operation ( t values were -8.15-8.72, R2=0.62, all P<0.05). Conclusions:There is room for further improvement in the empowerment of caregivers after gastrointestinal tumor surgery, especially in personal resources, goodwill care and scruples around. The results suggest that medical staff should guide caregivers to emancipate their minds, enhance the breadth of empowerment, and promote self care and fast rehabilitation of patients.

Objective:To explore an applicative value of a 5-type precise diagnostic technique in integrated precise repair and reconstruction of digit-tip injuries.Methods:From March 2012 to June 2022, 45 digit-tip injuries (38 patients, with an average age of 33 years old) were classified under microscope on the basis of effectiveness of blood vessels remained in the severed tissue. Among the injured digits, there were 15 thumbs, 9 index fingers, 16 middle fingers, 4 ring fingers and 1 little finger. The diagnosis was categorised into 5 types according to involvement of blood vessels: Type I, injury of proper palmar digital artery (10 digits) ; Type II, injury of small artery (5 digits) ; Type Ⅲ, injury of whole vein (4 digits) ; Type IV, injury of superficial palmar arch (4 digits) ; and Type V, vessels missing (22 digits). The timing and therapeutic method of surgery were selected based on the precise classification of 5 types of diagnosis: (1) For type Ⅰ-Ⅳ injuries, 16 patients (23 digits) received in situ tissue replantation after emergency classification. Of which, type Ⅰ-Ⅱ injuries received conventional replantation, type Ⅲ injuries had replantation with arterialised vein, and type IV injuries received replantation with artery-vein shunt. (2) For the type V injuries, 22 patients (22 digits), staged and categorised flap reconstruction with toe flaps were performed. Of which, 7 were performed in emergency surgery, 12 in subemergency surgery and 3 in elective surgery. Based on the severity of defects, small tissue flaps of toe were used in reconstruction of type V injuries and following toe flaps were employed: 9 hallux nail flaps, 3 hallux nail flaps (for reconstruction of distal phalanx), 5 hallux fibular flaps, 3 hallux abdominal flaps and 2 compound tissue flaps with nail bed of the second toe. The sizes of the 45 replanted/transferred tissues flaps were 1.0 cm×0.6 cm×0.4 cm-2.2 cm×1.5 cm×0.8 cm. Donor sites directly sutured. Medical APP was applied in the rehabilitation exercises. Functions of digits were assessed by scheduled follow-ups at outpatient clinic and via remote medical APP to evaluate the clinical efficacy.Results:All small tissue blocks and (or) tissue flaps survived after replantation and (or) flap reconstruction of 45 injured digits. Postoperative follow-up lasted for 6 months to 7 years, with 36 months in average. The appearances of the reconstructed digit-tips were close to normal digits, with TPD at 3-7 mm. According to the Michigan Hand Outcomes Questionnaire (MHQ), 32 patients (37 digits) were in excellent, 5 patients (7 digits) in good, and 1 patient (1 digit) in poor, with 97.78% of excellent and good rate.Conclusion:Five-type precise diagnostic technique is the key to the integrated and precise reconstruction of digit-tip injuries. This method has been clinically validated and achieved realistic recovery from the injured digits.

Imipenem-cilastatin is a broad-spectrum carbapenem antibiotic drug that has been widely used in clinical practice ， but there is a lack of guidelines and expert consensus on the development of individualized regimens for special status populations [e.g. continuous renal replacement therapy （CRRT）patients，extracorporeal membrane oxygenation （ECMO）patients， critically ill burn patients ，neonates and children]. In this paper ，by searching population pharmacokinetics research of imipenem- cilastatin in special status populations ，it is recommended that imipenem-cilastatin is given 1 to 3 g/d for CRRT patients ；500 mg to 1 g，q6 h for burn patients ；750 mg to 1 g，q6 h for ECMO patients ；20 mg/kg or 25 mg/kg，q8 h for neonates ；and 25 mg/kg，q6 h for children.