Conclusion High or low expression of adhesion molecules ICAM-1 、 CD_ 44 V6 、 CD_ 28 、 E-cad and CEA plays a certain role in organic selection of gastric carcinomatous metastasis.

Hematogenous dissemination is an important route for breast cancer metastasis. Detection of axillary lymph nodes alone is not enough to accurately determine whether patients with breast cancer develop carcinomatous metastasis.

血行播散是乳腺癌转移的重要途径，检测腋窝淋巴结已经不能完全准确判断乳腺癌患者是否存在转移。

Objective To observe the fine distribution and morphologic feature of lymphatics of gastric carcinoma, to go further into carcinomatous metastasis mechanism.

目的：观察人胃癌组织淋巴管的微细分布和形态特征，为进一步探讨胃癌的淋巴道转移机制提供形态学依据。

Objective To understand the biologic and clinical characteristics of carcinoid tumor of trachea and bronchus and to find out rational surgical indications and approaches.

目的了解气管、支气管类癌的临床生物学特性，探讨合理的手术指征及术式。

Carcinoid of trachea and bronchus: a report of 20 cases

气管支气管类癌20例

Clinicopathologic observation of strumal carcinoid of the ovary

卵巢甲状腺肿类癌临床病理观察

Primary insular carcinoid of the ovary

卵巢原发性胰腺类癌

Methods: Serum calcemia and PTHrP were detected by radio immunoassay in 10 patients with gynecologic malignancy ( cervical carcinoma 6; ovarian clear cell carcinoma 3; strumal carcinoid of ovary 1).

方法：对宫颈癌6例、卵巢癌4例（透明细胞癌3例、卵巢甲状腺肿1例）所致高血钙患者术前进行PTHrP放射免疫测定。

Strumal carcinoid of ovary

卵巢甲状腺肿类癌

Conclusion Struma carcinoid of ovary is a low grade malignant neuroendocrine carcinoma with thyroid tissue.

结论卵巢甲状腺肿类癌是一种伴有甲状腺滤泡分化的低度恶性神经内分泌癌。

Carcinoid tumor of stomach& a report of 3 cases

胃类癌&3例报导

There are also 5/ 8 subjects who had carcinoid of colon ( 62.5%);

结肠类癌5/8例（占62.5%）；

Long-term repeated PMA smearing, could induce the occurrence of skin papilloma in mice so as to realize the occurrence and development of chemical carcinogenesis.

长期多次涂抹PMA，可以诱发小鼠皮肤乳头状瘤的发生进而实现化学致癌的发生发展。

It becomes increasingly apparent that carcinogen-induced changes in epigenetic status may play an important role in mechanism of chemical carcinogenesis.

近年来研究显示，致癌物引起的表观遗传改变在化学致癌机理中可能起着十分重要的作用。

METHODS: Initiation and promotion two-stage chemical carcinogenesis method was used to induce cutaneous tumors in the mouse back skin.

方法：采用启动和促进两阶段化学诱癌方法在小鼠背部诱导皮肤肿瘤；

Chemical carcinogenesis in culture has proved to be a much more difficult field of investigation than viral carcinogenesis.

在培养内化学致癌已证明是一个比致癌困难得多的研究领域。

Chemical carcinogenesis comprises at least three stages: initiation, promotion and progression stages.

化学致癌过程至少包括三个阶段：启动、促进、发展。

The role of IFN-γ in tumor transplantation immunity and inhibition of chemical carcinogenesis

γ-干扰素在肿瘤移植免疫和化学致癌抑制中的作用

Enhancing the study of environmental carcinogenesis, teratogenesis and mutagenesis

加强环境致癌致畸致突变的研究

Studies of multistep process of environmental carcinogenesis using in vitro model for human fibroblast transformation

以人类成纤维细胞体外转化体系为模型研究环境致癌多步骤机制

Abstract In this paper, we expound the gist of the process control in thick-layer carburizing for heavy-duty gears which includes the selection of the suitable carburizing temperature, cycle and ratio of the carburizing to diffusing period, the way and the demand of carbon-potential control.

阐述了大型重载齿轮深层渗碳工艺控制的要点，包括渗碳温度和时间的合理选择，强渗与扩散时间的最佳分配，碳势控制的途径和要求。