This investigation determined the content of water,organic components and mineral of 80 skullparital bones from cadavers. Basing on semistatic test of anti-bending and anti-compressive mechanicsthe bone mineral contents were measured by quantitative computed tomogrophy. The relationship be-tween bone mineral contents and the mechanical properties was showed. The results suggested thatthere are positive interrelationship between anti-bending strength and skull spongiosa and betweenanti. compressive strength and skull compacta interna (r = O. 51 and O. 34, P

Study on the changes of osteophiphysis observed on the X ray film is quite practical for the age estimation of male teenager.210 male teenager cases,13～20 years old,from North China were studied for age estimation.Radiographic plates were taken from the following articles:shoulder joint,elbow joint,wrist joint,hipjoint,knee joint,ankle joint.Pedis 27 characteristics were found,phased and scored.By which the regression equations were constructed with SPSS.Four regression equations with highest multi relationship coefficient(r=0 758～0 787)and lowest standard error(SE=1 0136～1 0701)were then selected.The method presented here is quite useful for the age estimation of the teenage group in North China.

Objective To evaluate the analgesic effect of curcumin on trigeminal neuralgia in rats. Methods Thirty healthy adult male Sprague?Dawley rats, weighing 200-250 g, aged 7-8 weeks, were divided into 3 groups ( n=10 each) using a random number table: sham operation group ( group S) , tri?geminal neuralgia group (group TN) and trigeminal neuralgia + curcumin group (group Cur). Trigeminal neuralgia model was established by injecting cobra venom solution into the sheath of the infraorbital nerve ( ION) . Starting from 15 days after establishment of the model, curcumin 45 mg∕kg was intragastrically ad?ministered twice a day for 28 consecutive days in group Cur, while the equal volume of peanut oil was ad?ministered in group TN. Before establishment of the model (baseline), and on 4, 7, 14, 21, 28, 35 and 42 days after establishment of the model, the mechanical pain threshold was measured, the free behav?iors were observed, and the time and frequency of face?grooming and exploratory behaviors were recorded. After observation of the free behaviors, the ION and medulla oblongata on the affected side were removed for examination of the ultrastructure using transmission electron microscopy. Results Compared with group S, the mechanical pain threshold was significantly decreased, the time of face?grooming behaviors was signifi?cantly prolonged, the frequency of face?grooming behaviors was significantly increased, the time of explora?tory behaviors was significantly shortened, and the frequency of exploratory behaviors was significantly de?creased on 4-42 days after establishment of the model in group TN (P<0.05 or 0.01). Compared with group TN, the mechanical pain threshold was significantly increased, and the time of face?grooming behav?iors was significantly shortened on 28-42 days after establishment of the model, and the frequency of face?grooming behaviors was significantly decreased, the time of exploratory behaviors was significantly pro?longed, and the frequency of exploratory behaviors was significantly increased on 21-42 days after estab?lishment of the model in group Cur ( P<0.05 or 0.01) . Microscopic examination revealed that the changes in demyelination of the ION and medulla oblongata were significantly attenuated in group Cur as compared with group TN. Conclusion Intragastrically administered curcumin 45 mg∕kg ( twice a day for 28 consecutive days) can attenuate trigeminal neuralgia in rats, and the mechanism is related to the attenuated changes in demyelination of the ION and medulla oblongata.

Objective To evaluate the effect of curcumin on cognitive dysfunction in a rat model of trigeminal neuralgia.Methods Thirty healthy adult male Sprague-Dawley rats,weighing 200-250 g,were randomly divided into 3 groups (n=10 each) using a random number table:sham operation group (Sham group),trigeminal neuralgia group (TN group),and trigeminal neuralgia + curcumin group (TN + Cur group).Trigeminal neuralgia was produced by injecting cobra venom solution 4 μl into the sheath of the infraorbital nerve in TN and TN + Cur groups.Starting from 15 days after establishment of the model,1.5 ml peanut oil was injected through a gastric tube into stomach twice a day (in the morning and at night) for 28 consecutive days in TN group,and curcumin 45 mg/kg (dissolved in 1.5 ml peanut oil) was injected through a gastric tube into stomach twice a day (in the morning and at night) for 28 consecutive days in TN + Cur group.The cognitive function was assessed using Morris water maze test after the end of treatment.The escape latency,swimming speed,ratio of time of staying at the target quadrant,and the number of times the animals crossing the platform were recorded.The pathological changes in the hippocampal CA1 region were observed with an electron microscope.The ultrastructure of neurons,organelles and synapses in the hippocampal CA1 region was examined with a transmission electron microscope.Results There was no significant difference in the swimming speed between the three groups (P＞0.05).Compared with Sham group,the escape latency on 1st-4th days was significantly prolonged,the ratio of time of staying at the target quadrant was decreased,and the number of times the animals crossing the platform was decreased in TN group,and the escape latency was significantly prolonged on 3rd and 4th days in TN + Cur group (P＜0.01).Compared with TN group,the escape latency on 2nd-4th days was significantly shortened,the ratio of time of staying at the target quadrant was increased,the number of times the animals crossing the platform was increased (P＜0.01),and the pathological changes of hippocampal tissues were attenuated in TN + Cur group.Conclusion Curcumin can improve cognitive dysfunction in a rat model of trigeminal neuralgia.

Objective To explore the clinical characteristics and diagnostic methods of cerebral schistosomiasis.Methods The data of CT,MRI and the cerebral spine fluid(CSF) immunoassay in 42 patients with cerebral schistosomiasis were analyzed retrospectively.Results Forty cerebral schistosomiasis patients were diagnosed by the iconography and immunoassay,1 by the postoperative pathological examination and 1 by diagnostic treatment with praziquantel.Conclusions CT and MRI are of great value to determination of the position and nature of the cerebral schistosomiasis.The sensitivity and accuracy of MRI are better for indicating the main pathological changes of the disease than those of CT.The CSF immunoassay plays an important role in the differential diagnosis of cerebral schistosomiasis.

In this research， a comprehensive examination of historical materia medica， medical literature， medical books and contemporary literature was conducted to systematically compile and verify the naming， origin， geographical variations， quality， medicinal properties and processing of Tremolitum， and combined with the physical analysis of 15 batches of samples， with a view to providing a basis for the quality evaluation. The evidences unequivocally support Yangqishi as the rectification of name， while alternative aliases include Baishi， Shisheng， Yangjushi and Yangshi. The primary source of Tremolitum has been the silicate hornblende mineral tremolite throughout recorded history， and its accompanied minerals are mainly chlorite， talc schist， anthophyllite asbestos， etc. In ancient times， the main production area of Tremolitum was situated in the "Yaoshan Mountain" region of Jinan， Shandong province. Presently， it is primarily produced in Hubei， Henan， Shanxi， Hebei and Shandong provinces. The ancient quality evaluation of Tremolitum includes "white color"， "wolf teeth"， "cloud head and rain foot"， "heron hair"， etc. While， modern materia medica mostly evaluates its quality in terms of color， luster and texture， including the characteristics of needle bundle， grayish-white， glossy and easy to be twisted and crushed. Tremolitum is slightly warm， non-toxic， and possesses a salty taste. It is associated with the kidney meridian， known for its benefits in nourishing the fire of the gate of life， warming the kidneys and strengthening the Yang. Common processing methods include fire calcination， elutriation， and processing with wine. Additionally， there is an exclusive processing method known as the "ascending Tremolitum method". Through the X-ray diffraction（XRD） analysis， the commercially available Tremolitum is mainly composed of tremolite［Ca₂Mg₅（Si₄O₁₁）₂（OH）₂］， and the accompanied minerals are calcite and quartz， etc. Its color includes white， light gray， light green and so on， and it is weight and soft texture， irregular cross-section， with obvious fibrous texture and mostly glassy luster. Among the commercially available Tremolitum， samples with high content of tremolite are characterized by high quality features， such as "white color"， "heron hair" and "ease of tearing". Also， Tremolitum is the Fe-bearing heterogeneous species of tremolite， and the two are often symbiotic. Therefore， by the herbal textual research and the comparison of the properties and composition of Tremolitum and its similar species， it has been verified that the primary source of Tremolitum is the silicate hornblende minerals tremolite and actinolite.

Objective To investigate the genetic causes of auditory neuropathy with optic atrophy in a family.Methods The proband's medical history and family history were inquired in detail,and relevant clinical examina-tions were performed to confirm the diagnosis of auditory neuropathy with optic atrophy,and the genetic pedigree of the family was drawn.Peripheral blood of proband(Ⅲ-7)was collected for whole exome sequencing,and the patho-genicity of the detected mutations were interpreted.Blood samples of proband's wife(Ⅲ-8),eldest daughter(Ⅳ-7),second daughter(Ⅳ-9)and son(Ⅳ-10)were tested for mutation sites by Sanger sequencing.Combined with clinical manifestations and examination results,the family was studied.Results The genetic pattern of this family was autosomal dominant.The proband showed decreased visual acuity at the age of 19,bilateral sensorineural deaf-ness at the age of 30,and decreased speech recognition rate.Among 20 members of the family of 5 generations,10(2 deceased)showed similar symptoms of hearing and visual impairment.Proband(Ⅲ-7),eldest daughter(Ⅳ-7)and son(Ⅳ-10)underwent relevant examination.Pure tone audiometry showed bilateral sensorineural deafness.ABR showed no response bilaterally.The 40 Hz AERP showed no response in both ears.OAE showed responses in some or all of the frequencies.No stapedial reflex was detected.The eye movement of Ⅲ-7 and Ⅳ-10 were reasona-ble in all directions,and color vision was normal.Ocular papilla atrophy was observed in different degrees in fundus examination.OCT showed thinning of optic disc nerve fibers in both eyes,and visual evoked potential showed pro-longed P100 wave peak.They were diagnosed as hereditary auditory neuropathy with optic atrophy.A mutation of the OPA1 gene c.1334G＞A(p.Arg445His,NM_015560.2)at a pathogenic locus on chromosome 3 was detected by whole exon detection in Ⅲ-7.The results of generation sequencing analysis showed that the OPA1 gene c.1334G＞A(p.Arg445His,NM_015560.2)mutation of chromosome 3 was also found in Ⅳ-7 and Ⅳ-10.Meanwhile,the gen-otypes of Ⅲ-8 and Ⅳ-9 were wild homozygous,that is,no mutation occurred.Conclusion The OPA1 c.1334G＞A(p.Arg445His,NM_015560.2)mutation site might be the pathogenic mutation in this family.

Aiming to provide the foundation for the quality evaluation， in this paper， a comprehensive examination of historical materia medica， medical books and modern literature was conducted to systematically compile and verify the naming， origin and quality of Stalactitum， combined with the phase analysis of 20 batches of samples. The investigation indicates that before the Qing dynasty， Stalactitum was often referred to as Shizhongru， and there are other aliases such as Xuzhong， Xiashi and Huangshisha. In addition， there are some homologous mixed names such as Konggongnie， Yinnie， Ruchuang， Ruhua， but Zhongrushi is more commonly used. The descriptions of Stalactitum in ancient materia medica align with modern carbonate mineral calcite， slightly conical or cylindrical in shape， mostly white， grey and yellow in colour， often with a hole in the centre， and has a calcium carbonate content of 95% or more. Historical quality assessments include phrases such as gooseneck tube， cicada wing， bright and white， and brightness， the gloss is the most crucial feature. Modern evaluations encompass features like white color， hollow interior， brightness， multiple layers of patterns， and cross-sectional mask spark-like luminosity. Under the scanning electron microscope， Stalactitum showed obvious layered characteristics and uniform particle size， while the OS Balanophylliae was irregular. By comparing the characteristics and micro-features of Stalactitum from different batches， along with X-ray diffraction（XRD） and determination of calcium carbonate， the phase composition of different batches of Stalactitum was roughly similar， all of them were dominated by calcite， with magnesium calcite as an additional ingredient， the content of CaCO₃ was relatively higher for those with brightness and a lot of spark-like luminosity， which were key features of its quality evaluation， the white color could be used as a quality reference， and layered patterns and papillary bulge could be used as a medicinal material identification feature， which were basically consistent with the results of herbal textual research. This study can provide a reference for the quality evaluation of mineral medicines， and can better guide their clinical use and rational utilization of resources.

Objective To compare the epidemiological characteristics of COVID-19 in Guangzhou and Wenzhou, and evaluate the effectiveness of their prevention and control measures. Methods Data of COVID-19 cases reported in Guangzhou and Wenzhou as of 29 February, 2020 were collected. The incidence curves of COVID-19 in two cities were constructed. The real time reproduction number ( R t ) of COVID-19 in two cities was calculated respectively. Results A total of 346 and 465 confirmed COVID-19 cases were analysed in Guangzhou and Wenzhou, respectively. In two cities, most cases were aged 30-59 years (Guangzhou: 54.9%; Wenzhou: 70.3%). The incidence curve peaked on 27 January, 2020 in Guangzhou and on 26 January, 2020 in Wenzhou, then began to decline in both cities. The peaks of imported COVID-19 cases from Hubei occurred earlier than the peak of COVID-19 incidences in two cities, and the peak of imported cases from Hubei occurred earlier in Wenzhou than in Guangzhou. In early epidemic phase, imported cases were predominant in both cities, then the number of local cases increased and gradually took the dominance in Wenzhou. In Guangzhou, the imported cases was still predominant. Despite the different epidemic pattern, the R t and the number of COVID-19 cases declined after strict prevention and control measures were taken in Guangzhou and in Wenzhou. Conclusion The time and scale specific differences of imported COVID-19 resulted in different epidemic patterns in two cities, but the spread of the disease were effectively controlled after taking strict prevention and control measures.

Objective: To diagnose a large family of patients with hereditary angioedema, and to study its inheritance pattern and gene locus. Methods: A retrospective analysis was carried out from August 2021 to February 2022 in a proband (female, 48 years old) and 12 family members who underwent medical history collection and laboratory examinations in the Department of Otorhinolaryngology and Head and Neck Surgery, the Second Hospital of Shanxi Medical University. The clinical data of members and non-affected members [including 7 males and 5 females, aged 12-78 (median 24) years old], were drawn a family map while confirming the diagnosis. Whole exome sequencing technology was used to detect the genetic sequence of the proband and to verify its family members to map the genetic pedigree of the mutation. Results: The inheritance pattern of the family was autosomal dominant, and 8 members of the family were diagnosed with hereditary angioedema by laboratory examination, including 7 cases of type I and 1 case of type Ⅱ. Whole exome sequencing analysis was performed on 2 patients with 2 phenotypes, and it was found that they both carried the same pathogenic mutation locus, which was c.890-2A>G. The family members were verified by next-generation sequencing, and it was found that all members of the family who had a history of edema contained this mutation site, while the younger brother of the proband who had no history of edema did not have this mutation. Conclusion: Both type Ⅰ and type Ⅱ phenotypes are present in this hereditary angioedema family, and the mutation of SERPING1 gene c.890-2A>G causes the onset of each patient in this family.
Angioedemas, Hereditary/genetics* ; Asian People ; Female ; Humans ; Male ; Mutation ; Pedigree ; Retrospective Studies