Objective To explore the anatomy and the adjacent of the medial malleolus,the operative approach of soluting the tibial nerve in endoscopy and the significance of making use of it in operation. Methods The five cadaver feet were dissected,the tibial nerve and the fiber diaphragm in the middle of me- dial and lateral plantar tunnels in the ten cadaver feet were soluted in endoscopic.Results The operative approach was designed on the basis of the anatomy data (the three-portal approach:The perpendicular bisetor which was the medial malleolus pointed to the medial margin of tendon calcaneus insertion was 4.5cm;The midpoint of the medial malleolus pointed to the calcaneus tubercle;The midpoint of the calcaneus tubercle to the medial margin of the first metatarsophalangeal joint).It was succeed that soluted the tibial nerve and the fiber diaphragm in the middle of medial and lateral plantar tunnels.Conclusion The operative approach on the basis of the anatomy data is design,and testfy the feasibility of exploring curved tunnel in endoscopic.

The contents of coumarins in the sulfur fumigated Angelicae Dahuricae Radix (Baizhi, ADR) were reduced significantly. To achieve the quality control of ADR, the qualitative identification of sulfur fumigated ADR and quantitative model of imperatorin content should be established. The near-infrared (NIR) spectrograms of non-sulfur and sulfur fumigated ADR were collected by NIR diffuse reflectance spectroscopy technology and pretreated by the method of first derivative derivation and vector normalization. The Ward's Algorithm method was used for the cluster analysis. The non-sulfur and sulfur fumigated ADR can be quickly identified in the range of 8,806. 0-3 811.0 cm(-1) based on the cluster analysis. The NIR quantitative model of imperatorin was established by the contents of imperatorin determined by HPLC in combination with partial least squares regression analysis. According to the calibration model established in this study, correlation coefficients (R2), the root-mean-square error of cross-validation (RMSECV), and the root-mean-square error of prediction (RMSEP) for imperatorin were 0.982 8, 0.006 8, 0.011 8, respectively. The quantitative model of imperatorin can be applied to determine the content of imperatorin in ADR accurately.
Angelica ; chemistry ; classification ; China ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Quality Control ; Spectroscopy, Near-Infrared ; methods ; Sulfur ; chemistry

Objective To summarize the clinical characteristics and causes of ischemic cerebrovascular disease(ICD)in children.Methods A retrospective analysis was conducted on the clinical data of 53 cases with ICD from Feb.2002 to Jun.2008 at the department of neurology in Wuhan Children's Hospital.The self-designed questionnaire of children with ICD was used,whose items included patients' age,gender,personal history,clinical features,cerebrospinal fluid examination,neurological imaging,immunologic examination,metabolic examination,and so on.Results Of 53 children with ICD,30 cases(56.6%)were male,and 23 cases(43.4%)were female.Patients' age varied from 9 months to 12 years old,in which 45 cases(84.9%)were less than 6 years old.Patients from rural area(60.4%)were more than those from city(39.6%).Ratio of limb paralysis was 75.5%(40 cases)in first clinical symptomatology of children with ICD,including hemiplegia in 32 cases(60.4%),alternate hemiplegia in 5 cases(9.4%)and monoplegia in 3 cases(5.7%).Skull CT/MRI scan was performed to reveal 27 cases(50.9%)with basal ganglia region infarction and secondly 15 cases(28.3%)with multi-lobar infarction.Forty cases were found in abnormal cerebrovascular image by means of magnetic resonance angiography/digital subtraction angiography,in which middle cerebral artery and its branches were involved in 21 cases(52.5%).There were 41 cases(77.4%)of patients to be found with clear causes,of which 13 cases(24.5%)were of infections,8 cases(15.1%)of moyamoya disease,5 cases(9.4%)of cerebral vascular malformations,4 cases(7.5%)of head trauma.However,another 12 cases(22.6%)of patients had unknown etiology.Conclusions Children with ICD had characteristics themselves.The limb paralysis was mostly the first symptoms,and the middle cerebral artery and its branches lesions were the most common locations in children with ICD,and next the internal carotid artery involvement,anterior cerebral artery involvement,posterior cerebral artery involvement,cerebral vascular malformations,and so on.Their major cause was infection,followed by Moyamoya disease,cerebrovascular malformations and head trauma,and there were still some unknown causes.

Adolescent ; Endoscopy ; methods ; Face ; surgery ; Facial Neoplasms ; surgery ; Female ; Hemangioma, Cavernous ; surgery ; Humans ; Nose ; surgery

OBJECTIVETo investigate the effect of 6-gingerol, the main active component of ginger, on hair shaft elongation in vitro and hair growth in vivo.

METHODSFirstly, Hair follicles were co-cultured with 3 different concentration of 6-gingerol for 5 days and hair elongation in three groups was measured. Secondly, The proliferative effect of 6-gingerol on DPCs was measured using MTT assay. Thirdly, the expression of Bcl-2 and Bax in DPCs were measured using Western blotting. In vivo study, the influence of 6-gingerol on hair growth in C57BL/6 rats was measured through topical application of 6-gingerol on the dorsal skin of each animal.

RESULTSThe length of hair shaft in 20 microg/ml 6-Gingerol group (0.50 +/- 0.08 mm) is less than 0 microg/ml (0.66 +/- 0.19) mm and 10 microg/ml (0.64 +/- 0.03) mm 6-Gingerol group (P < 0.05). In cell culture, compared to 0 microg/ml and 5 microg/ml 6-Gingerol, 10 microg/ml 6-Gingerol can significantly inhibited the proliferation of DPCs (P < 0.05). Along with the growth inhibition of DPCs by 6-gingerol, the Bax/Bcl-2 ratio increased obviously. In vivo study, the hair length and density decreased a lot after using 1 mg/ml 6-gingerol.

CONCLUSIONS6-Gingerol can suppress human hair shaft elongation because it has pro-apoptotic effects on DPCs via increasing Bax/Bcl-2 ratio. It might inhibit hair growth by prolonging the telogen stage in vivo.

Animals ; Catechols ; pharmacology ; Cell Culture Techniques ; Cells, Cultured ; Fatty Alcohols ; pharmacology ; Hair ; drug effects ; growth & development ; Hair Follicle ; drug effects ; growth & development ; Humans ; Mice ; Mice, Inbred C57BL ; Plant Extracts ; pharmacology ; Rats ; bcl-2-Associated X Protein ; metabolism

OBJECTIVETo explore the clinical application value of Provider-Initiated HIV Testing and Counseling (PITC) by analyzing the positive rate of HIV tests for people in need of PITC and that of routine HIV tests.

METHODSWe retrospectively analyzed the demographic and epidemiologic data about the patients seeking PITC services or undergoing routine HIV tests in Nanjing Drum Tower Hospital between January and December 2013.

RESULTSThe positive rate of initial HIV screening was 1.98% in the PITC group and 0.24% in the routine test group, while that of confirmed HIV was 0. 40% in the former and 0.07% in the latter, both with statistically significant differences between the two groups (P < 0.01). The positive rate of HIV was markedly higher in males than in females, particularly in the PITC group.

CONCLUSIONPITC has a high clinical value in HIV detection for targeted subjects and therefore deserves general application in dermatology.

Counseling ; Dermatology ; Female ; HIV Seropositivity ; diagnosis ; epidemiology ; Humans ; Male ; Mass Screening ; methods ; Retrospective Studies ; Sex Factors

This study is to investigate the protection effect of schisandrin B (Sch B) against oxidation stress of HK-2 cells induced by cisplatin and the mechanisms involved. HK-2 cells were cultured and divided into different groups: solvent control group, cisplatin exposure group, positive group, Sch B treatment group. Cell viability and toxicity were evaluated by MTT and LDH assay. GSH level and SOD enzymes activities were also measured. DCFH-DA as fluorescence probe was used to detect ROS level by fluorescence microplate reader. Nrf2 translocation was detected by Western blotting. Real time Q-PCR was used to detect expressions of NQO1, HO-1 and GCLC mRNA level. The results showed that Sch B could significantly inhibit the decline of cell viability induced by cisplatin treatment (P < 0.05) and the protective effect was in a dose dependent manner. Furthermore, Sch B treatment significantly inhibited the increase of ROS level induced by cisplatin and reversed the decrease of GSH level (P < 0.05). When Sch B concentration was up to 5 micromol x L(-1), SOD enzyme activities were also enhanced significantly compared with that of the cisplatin group (P < 0.05). It was shown that Sch B could cause nuclear accumulation of Nrf2 in association with downstream activation of Nrf2 mediated oxidative response genes such as GCLC, NQO1 and HO-1. These results suggested Sch B could protect against the oxidative damage of HK-2 cells induced by cisplatin via the activation of Nrf2/ARE signal pathway.
Antineoplastic Agents ; toxicity ; Antioxidants ; isolation & purification ; pharmacology ; Cell Line ; Cell Survival ; drug effects ; Cisplatin ; toxicity ; Cyclooctanes ; isolation & purification ; pharmacology ; Glutamate-Cysteine Ligase ; genetics ; metabolism ; Glutathione ; metabolism ; Heme Oxygenase-1 ; genetics ; metabolism ; Humans ; Kidney Tubules, Proximal ; cytology ; metabolism ; L-Lactate Dehydrogenase ; metabolism ; Lignans ; isolation & purification ; pharmacology ; NAD(P)H Dehydrogenase (Quinone) ; genetics ; metabolism ; NF-E2-Related Factor 2 ; genetics ; metabolism ; Polycyclic Compounds ; isolation & purification ; pharmacology ; RNA, Messenger ; metabolism ; Reactive Oxygen Species ; metabolism ; Schisandra ; chemistry ; Signal Transduction ; Superoxide Dismutase ; metabolism

The aim of this study was to evaluate and compare the colour stabilities of three types of orthodontic clear aligners exposed to staining agents in vitro. Sixty clear orthodontic aligners produced by three manufacturers (Invisalign, Angelalign, and Smartee) were immersed in three staining solutions (coffee, black tea, and red wine) and one control solution (distilled water). After 12-h and 7-day immersions, the aligners were washed in an ultrasonic cleaner and measured with a colourimeter. The colour changes (ΔE*) were calculated on the basis of the Commission Internationale de I’Eclairage L*a*b*colour system (CIE L*a*b*), and the results were then converted into National Bureau of Standards (NBS) units. Fourier transformation infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM) were conducted to observe the molecular and morphologic alterations to the aligner surfaces, respectively. The three types of aligners exhibited slight colour changes after 12 h of staining, with the exception of the Invisalign aligners stained with coffee. The Invisalign aligners exhibited significantly higherΔE*values (ranging from 0.30 to 27.81) than those of the Angelalign and Smartee aligners (ΔE*values ranging from 0.33 to 1.89 and 0.32 to 1.61, respectively, Po0.05). FT-IR analysis confirmed that the polymer-based structure of aligners did not exhibit significant chemical differences before and after the immersions. The SEM results revealed different surface alterations to the three types of aligner materials after the 7-day staining. The three types of aesthetic orthodontic appliances exhibited colour stability after the 12-h immersion, with the exception of the Invisalign aligners stained by coffee. The Invisalign aligners were more prone than the Angelalign and Smartee aligners to pigmentation. Aligner materials may be improved by considering aesthetic colour stability properties.

Professor LI Zhi-dao's acupuncture technique at muscle belly and its clinical experiences for the treatment of arthralgia are introduced. From aspects of TCM, anatomical physiology and sports biomechanics, the theory basis of this technique is explained, while its method is elaborated in details from acupoint selection and manipulation combined with classic medical cases. The acupuncture technique at muscle belly is applied at the muscles which already have pathological changes, avoiding re-stimulation on the pain area. It provides new thinking methods and references for acupuncture to treat arthralgia.
Acupuncture Points ; Acupuncture Therapy ; methods ; Adult ; Aged ; Arthralgia ; therapy ; Female ; Humans ; Male ; Middle Aged

Animals ; Chemokine CCL11 ; metabolism ; Guinea Pigs ; Respiratory Mucosa ; metabolism ; Rhinitis, Allergic, Seasonal ; metabolism